AT&T 2630DA Service Manual

BELL SYSTEM PRACTICES
AT&TCo Standard
2630DA, 2630DAM, 2631DA, AND 2631DAM TELEPHONE SETS
1. GENERAL
This section contains connection and maintenance
1.01
information for the 2630DA, 2630DAM,
2631DA, and 2631DAM CALL DIRECTOR® type
telephone sets.
This section is reissued to add the 2630DAM
1.02
and 2631DAM (modular) telephone sets.
2. CONNECTIONS
The 2630DA and 2631DA sets are equipped
2.01
with a 635A5C (5-line pickup and hold) or a
635AD5C (4-line pickup, cutoff, and hold) in the
first module position.
[required with sets equipped with a D120K (MD)
or D200S (MD) mounting cord] differ between the
two keys. If ordered for field replacement, the
635AD5C is furnished with a piggy-back adapter
in the cut-off key position, for storing the slate
mounting cord plug associated with the fifth line.
The necessary contact strip assemblies (840151039
and 840151047) will be shipped with the 635AD5C
and will replace the 840151120 and 840151138
assemblies supplied with the 635A5C key.
Note:
sets equipped with a D120M or D200AA
mounting cord or sets equipped with a modified
D120K or D200S mounting cord.
•The 2630DAM and 2631DAM modular
2.02
telephone sets are similar to the 2630DA or
2631DA, respectively, except the modular G 15A
handset with its associated H4DU cord and 616E
jack assembly are used in place of the hard wired
G3A-type handset .•
Because of the physical arrangement of the
2.03
635-type key, the contact strips do not extend
to the chaining switch.
last). See Fig. 3, Sheets 1 through 5.
and ring conductor to each module (except the
BSP 502-612-401 -i05_1975-l l..Ql.jpg
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado
Contact strip assemblies
Contact strips are not required with
This requires a second tip
Bell System except under written agreement
SERVICE
2.04
on a per line basis and are connected to the rear
of the keys.
appearances either in the set or at the key equipment
distribution point.
2.05
by removing the .812857738. or P-28E773 detail
from key positions involved and making the necessary
wiring changes per Table C.
A KS-20419L1 (10 volt AC only) buzzer is
2.06
factory-installed for use as a second audible
signal, when required. This arrangement uses (S-Y)
and (Y-S) mounting cord conductors from
in the second module (Fig. 3).
2.07
3-type or 4A speakerphone systems.
2.08
the 3rd (2630-type) or 5th (2631-type) module.
Fig. 4 and Table D show wiring of sets with
speakerphone and necessary field modifications.
When the 3-type speakerphone control unit
2.09
internal transmitter (679A) is used, an A25B connector
cable should be plugged into the last mounting
cord plug and terminated on the control unit
terminal board.
2.10
still have 3-type speakerphone feature, a 666A
(MD) or 666B transmitter and 760A loudspeaker
may be installed as adjuncts to the telephone set.
Spare leads and hold key lamp leads from the first
module are used to supply the external speakerphone
function (Table E). When control unit and telephone
·
set are at same location, an auxiliary mounting
NOTICE
Not for use or disclosure outside the
Printed in U.S.A.
Feb 04, 2012 15:34:54
Issue
The line conductors of the mounting cords
for these sets terminate in individual plugs
This permits rearrangement of line
All line pickup key positions are convertible
to signaling or common signaling arrangements
These sets may be used with either the
Sets may be equipped for 3-type speakerphone
by the addition of a 679A transmitter in
is located near the telephone set and an
To retain the maximum number of keys in
the CALL DIRECTOR telephone sets and
SECTION 502-612-401
5, November 1975
(0)
binder
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